If x-2 and x+4 are factors of 3x^3+ax^2-6x-b find a and b
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3×2power 3 + A2 power 2 - 6×2-b
24+4a-12-b
4a-b+12=0
next eq.with X=-4
-132+16a+24-b
16a-b-108
ab eq ki solve Kar loo
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